<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <!-- 头部 -->
      <div class="header">
        <h3 class="title">敢心商城</h3>
        <div class="login_header">
          <a @click="isSmple=true" :class="{active:isSmple==true}">密码登录</a>
          <a @click="isSmple=false" :class="{active:isSmple==false}">免密登录</a>
        </div>
      </div>
      <!-- 登录表单 -->
      <!-- 密码登录 -->
      <div v-show="isSmple==true" class="pass_item">
      <el-form-item prop="username" v-if="isSmple">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password" v-if="isSmple">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="isSmple">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="请输入验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
        </div>
      </el-form-item>
        <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      </div>

      <!-- 免密登录 -->
      <div v-show="isSmple==false" class="pass_item">
      <el-form-item prop="mobile" v-if="!isSmple">
        <el-input v-model="loginForm.mobile" type="text" auto-complete="off" placeholder="手机号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="smsCode" v-if="!isSmple">
        <el-input
          v-model="loginForm.smsCode"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <el-button round @click.native.prevent="getSmsCode">{{computeTime>0 ? `(${computeTime}s)已发送` : '获取验证码'}}</el-button>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住手机号</el-checkbox>
      </div>

      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
      <router-link to="/register">
      <el-form-item style="width:100%;">
          <el-button
          size="medium"
          type="text"
          style="width:100%;">
          <span>没有账号？点我注册</span>
          </el-button>
      </el-form-item>
      </router-link>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2021 cqjtu pjy&zq.</span>
    </div>
  </div>
</template>

<script>
import { getCodeImg , getSmsCode , smsLogin } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: "Login",
  data() {

    var smscodeChange = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请输入短信验证码"));
      }
    };
    return {
      codeUrl: "",
      cookiePassword: "",
      computeTime: 0,
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: "",
        mobile: "",
        smsCode: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "用户名不能为空" }
        ],
        mobile: [
          { required: true, trigger: "blur", message: "手机号不能为空" }
        ],
        password: [
          { required: true, trigger: "blur", message: "密码不能为空" }
        ],
        code: [
          {  required: true , trigger : "blur" , message: "验证码不能为空" },
        ],
        smsCode: [
          { required: true , trigger : "blur" , message: "验证码不能为空"},
        ],
      },
      loading: false,
      redirect: undefined,
      isSmple:true,
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getSmsCode(){
      if (!this.computeTime) {
       this.$refs.loginForm.validateField("mobile",valid => {
         if (!valid) {
            getSmsCode(this.loginForm.mobile).then(res =>{
              if(res.code === 200){
                this.$message({
                        message: '验证码已发送',
                        type: 'success'
                      });
              this.loginForm.uuid = res.uuid;
              this.computeTime = 60;
              this.timer = setInterval(() => {
              	this.computeTime--;
              	if (this.computeTime <= 0) {
              		clearInterval(this.timer)
              	}
              }, 1000);
              }

            })
         }
      })
     }
    },
    getCode() {
      getCodeImg().then(res => {
        this.codeUrl = "data:image/gif;base64," + res.img;
        this.loginForm.uuid = res.uuid;
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          if(!this.isSmple){
            this.loading = true;
            if (this.loginForm.rememberMe) {
              Cookies.set("mobile", this.loginForm.mobile, { expires: 30 });
              Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
            } else {
              Cookies.remove("mobile");
              Cookies.remove('rememberMe');
            }
            this.$store.dispatch("SmsLogin", this.loginForm).then(() => {
              this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
            }).catch(() => {
              this.loading = false;
            });
          }else{
            this.loading = true;
            if (this.loginForm.rememberMe) {
              Cookies.set("username", this.loginForm.username, { expires: 30 });
              Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
              Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
            } else {
              Cookies.remove("username");
              Cookies.remove("password");
              Cookies.remove('rememberMe');
            }
            this.$store.dispatch("Login", this.loginForm).then(() => {
              this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
            }).catch(() => {
              this.loading = false;
              this.getCode();
            });
          }
        }
      });
    },
  }
};
</script>

<style rel="stylesheets/scss" lang="scss" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 12px;
  width: 400px;
  height: 480px;
  box-shadow: 0 5px 20px 0 rgba(0, 0, 0, 0.192);
  background-color: rgba(255, 255, 255, 0.904);
  box-sizing: border-box;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 35px;
    input {
      height: 40px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.sms-login {
  width: 25%;
  height: 30px;
  float: right;


}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
.active{
  margin: 5px;
  color: #a3a3a3;;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(61, 61, 61, 0.733);
}
.login_header{
	margin-bottom: 20px;
}
.pass_item{
  border: 0px solid #999;
	overflow: hidden;
}
a{
  margin: 10px;
  color: #1f1f1f;
}
</style>
